AirHint found the following cheapest return flights from Bucharest (BBU) to Bangkok (BKK) in September 2025 (see full year).

Return flights

14 Sep - 27 Sep	Wizz Air Abu Dhabi
03 Sep - 11 Sep	Wizz Air Abu Dhabi
21 Sep - 26 Sep	Wizz Air Abu Dhabi
15 Sep - 30 Sep	Wizz Air Abu Dhabi
21 Sep - 02 Oct	Wizz Air Abu Dhabi
17 Sep - 01 Oct	Wizz Air Abu Dhabi
10 Sep - 16 Sep	Wizz Air Abu Dhabi
05 Sep - 09 Sep	Wizz Air Abu Dhabi
21 Sep - 04 Oct	Wizz Air Abu Dhabi
09 Sep - 23 Sep	Wizz Air
04 Sep - 15 Sep	Wizz Air
20 Sep - 26 Sep	Wizz Air Malta

Also check the deals for one-way flights from Bucharest to Bangkok in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Bucharest to Bangkok in September from $623

Return flights